I live in Columbus, Indiana and have entered the codes provided by this site for my area. For some reason I am able to hear what I believe to be the dispatcher for police/fire/etc., but I am unable to hear any response from the people the dispatcher is talking to. Kind of a one-sided conversation. Also, many of the channels have no activity whatsoever. Have I done something wrong? Perhaps my scanner is too old? I have a Uniden Bearcat BC278CLT, and I am sure I have entered the codes correctly. I double-checked.